This paper reports the results of a major study of the impact of international agricultural research, covering eleven crops in all major regions of the developing world, over the period 1960-2000. Although much of the "common wisdom" concerning the Green Revolution suggests that gains from...

Many developing countries pursue policies that treat large and small firmsdifferently. For example, large firms may be subject to a value added tax whilesmall firms are explicitly exempted. Moreover, governments often find itimpractical to collect taxes from the smallest enterprises; this may...